Description
5.56 NATO Chamber
4150 CrMoV (Chrome Moly Vanadium per MIL-B-11595E)
1/7 Twist Six Groove
1/2-28 Threaded Muzzle
.750? Gas Block Journal
17 Ounces
QPQ Corrosion Resistant Finish
QPQ coated M4 Feed Ramp Extension
High Pressure (proof) Tested (HPT)
Magnetic Particle Inspected (MPI)
